How to avoid abnormal flow rate when extracting with countertop coffee dispenser?
Publish Time: 2025-04-14
As an indispensable coffee making device in modern homes and offices, the abnormal flow rate of countertop coffee dispenser often troubles users. Too fast or too slow flow rate will directly affect the taste and quality of coffee. To avoid this problem, it is necessary to start from multiple aspects and carefully adjust and maintain the coffee machine.
Abnormal flow rate, in short, means that the speed at which water flows through the coffee powder during coffee extraction is not as expected. Too fast flow rate often means that the coffee powder is ground too coarsely or the powder is not pressed tightly enough, causing hot water to quickly pass through the coffee powder layer and unable to fully extract the flavor of the coffee. As a result, the coffee tastes weak and lacks layering. On the contrary, too slow flow rate may be caused by too fine grinding of coffee powder, or too tight pressing of powder, or even blockage of the internal pipes of the coffee machine, making it difficult for hot water to pass smoothly, the extraction time is too long, and the coffee tastes bitter or even burnt.
To avoid too fast flow rate, first ensure that the grinding degree of coffee powder is moderate. Different coffee machines have different requirements for the coarseness of coffee powder. Generally speaking, Italian coffee machines require finer coffee powder, while American coffee machines can use slightly coarser coffee powder. Using a professional grinder to adjust the grinding degree according to the type of coffee machine and personal taste preference is the key to ensuring a normal flow rate. In addition, the force should be even when pressing the powder to ensure that the coffee powder layer is compact and flat, and avoid being too loose or too tight locally.
For the problem of slow flow rate, in addition to checking the grinding degree and pressing of the coffee powder, it is also necessary to pay attention to the internal cleaning of the coffee machine. After long-term use, impurities such as coffee grounds and scale may accumulate in the internal pipes of the coffee machine, causing the pipes to narrow and affect the water flow rate. Therefore, regular cleaning of the coffee machine, especially cleaning key components such as the steam system, brewing head and filter, is an important measure to maintain a normal flow rate. You can use a special coffee machine cleaner and clean it according to the instructions to ensure that the inside of the coffee machine is clean and unblocked.
In addition, water temperature is also an important factor affecting the flow rate. If the water temperature is too high, the coffee powder will dissolve too quickly and the flow rate will increase; if the water temperature is too low, the coffee powder will dissolve slowly and the flow rate will slow down. Therefore, before using the coffee machine, make sure the water temperature is set within the appropriate range. Generally speaking, the water temperature of the espresso machine should be controlled between 92-95 degrees Celsius.
Finally, the usage habits of the coffee machine will also affect the flow rate. Frequent switching on and off, long-term non-use, etc. may cause problems such as temperature changes inside the coffee machine and unstable pipe pressure, thereby affecting the flow rate. Therefore, it is recommended to develop good usage habits, avoid frequent switching on and off, and clean and properly store the coffee machine when it is not used for a long time.
To avoid abnormal flow rate during countertop coffee dispenser extraction, it is necessary to start from multiple aspects such as grinding degree, powder pressing, internal cleaning, water temperature control, and usage habits. Only by carefully adjusting and maintaining the coffee machine can we ensure that each extracted coffee has an ideal flow rate and perfect taste.
